Ultrasonic converter and ultrasonic transducer are two terms frequently used in the ultrasonic welding industry for the component that converts high-frequency electrical energy into mechanical vibration. This component is one of the central parts of an ultrasonic welding stack and works together with the generator, booster and horn.
Inside the converter are piezoelectric elements that respond to an alternating electrical signal and generate mechanical vibration. The vibration is then transferred through the booster to the welding horn, which applies the ultrasonic energy to the workpiece.
For businesses purchasing replacement ultrasonic components, understanding this terminology is important. Product descriptions may use the terms converter and transducer interchangeably, while the actual specifications such as frequency, power, dimensions and mounting configuration determine compatibility.
This article explains the terminology, working principle and important specifications buyers should check when selecting an ultrasonic converter or transducer.